Safety belt



June 27, 1967 RYMK 3,327,364

SAFETY BELT Filed June 16, 1965 2 Sheets-Sheet 1 1' NVEIVTOR. 5 744/5445 QY/I/Ik June 27, 1967 Filed June 16, 1965 I II SAFETY BELT 2 Sheets-Sheet 2 INVENTOR 5 4075105 I2 V/V/K BY firms 17415 21?! om AENF/ 0/900 Arman 5y:

United States Patent 3,327,364 SAFETY BELT Stanislas Rynik, 13 bis Rue Hoche, Angers, France Filed June 16, 1965, Ser. No. 464,395 Claims priority, application France, July 29, 1964, 983,483, Patent 1,402,572 1 Claim. (Cl. 24230) The main object of the invention is to provide a buckle for a safety belt of simple manufacture with considerably reduced cost, owing to the simplicity of the parts forming the belt buckle.

Another object of the invention is to make the two elements of the belt buckle inseparable by means of a simple bolt or slide.

Another object of the invention is to produce a buckle which will be very solid, and which, moreover, cannot am.

Another object of the invention is to produce a buckle that can be closed or opened by one finger.

Other objects and advantages will be revealed by the description and attached drawings, in which:

FIGURE 1 is a perspective view of a buckle in an open position;

FIGURE 2 shows the buckle of FIGURE 1, the two elements of this buckle being fixed to each other before bolting;

FIGURE 3 also shows the buckles of FIGURES 1 and 2, this buckle being bolted;

FIGURE 4 is a section along A-A of FIGURE 1;

FIGURE 4a is a top plan view of the buckle shown in FIGURE 4;

FIGURE 4b is a bottom plan view of the buckle shown in FIGURE 4;

FIGURE 5 is a section along BB of FIGURE 3.

As shown in FIGURE 1, the invention essentially relates to a safety belt buckle of which the two elements can be locked by a slide bolt 1.

This slide bolt has side edges, with the exact shape to slide on the access-guide 2, while the slide itself is integral with the fastening part 3 itself. The fastening part 4 has a latching member or extension 5 bent at its end to form the male part of the buckle, the bent end 6 of this part being capable of penetrating into a groove 7 made on the access-guide 2 of the female fastening 3. The slide 1 is permanently pulled by a cylindrical spring 8, which on the one hand is fixed by a rivet 9 to the slide, and on the other hand, is fixed by a second rivet 10 to the access-guide 2 (see FIGURE 4).

The lateral sides 11 and 11 of the access-guide 2 are turned up to guide the slide 1, the lateral sides of which are turned down and under to :slide on the lateral sides 11 and 11 of the access guide 2 of the female fastening 3 (see FIGURE 5).

This buckles operate as follows:

When the male and female elements 3 and 4 of the buckle are to be assembled, the slide 1 is made to slide on the lateral edges 11 and 11 of the access-guide 2 and in the direction of the arrow F1 (to the left in FIG. 3). A groove, aperture or slot 7 made on this 3,327,364 Patented June 27, 1967 access guide 2 receives the bent part 6 of the extension 5 of the male part 4.

The slide 1, pulled by the spring 8, after being released will slide on the guides 11 and 11 in the direction of the arrow F2 (to the right in FIG. 2), thus covering the extension 5, locking the extension by its turneddown end in the groove 7 made on the access-guide 2 (see FIGURES 2 and 3).

To separate these two elements, the slide 1 will be moved in the direction of the arrow F1 (FIG. 3), and the male fastening 4 will pivot on its bearing point and will be released by its own weight.

This device affords numerous advantages:

The buckle is made up of four extremely solid parts, the simple working of these parts makes the buckle very easy to manipulate and does not jam. The construction permits the cost of said buckle to be considerably reduced, while retaining distinctly greater safety guarantees.

The belt can be quickly closed or opened by using only one finger. One of the elements of the belt will be sewn to one of the ends of the belt attached to the seat, whereas the end of the other element of the belt will be so mounted as to be able to be adjusted in accordance with the waist measurement of the user.

The various parts can be made of steel, but can also be formed of non-ferrous materials such as copper alloy, aluminium, etc., or of flexible material such as plastic or a derivative. A recoil spring of the slide which is a spring of twisted wire can be replaced by a straight or plate spring.

What I claim is:

A buckle for a safety belt comprising two elements and a locking slide member, the first of said elements being female and having an extension thereon forming an access guide for said slide, said access guide having an aperture formed therein, the second element of said buckle having an extension having on its end a male latching element adapted to fit within said aperture on said female element, the lateral edges of said access guide on said first element being upturned to form a guide for said slide, said slide being bent on its lateral edges to form sides adapted to slide on said guide, a spring attached to said access guide and said slide effective to bias said slide to a position covering said aperture in said access guide, said elements being separable when said slide is retracted away from the position covering said aperture, said elements being locked together when said male and female parts are latched and said slide is positioned over said aperture.

References Cited UNITED STATES PATENTS 2,902,737 9/ 1959 Moran.

3,130,466 4/ 1964 Carter.

3,149,807 9/1964 Jungersen.

3,153,270 10/1964 Lindblad.

3,263,270 8/ 1966 Crawford.

FOREIGN PATENTS 1,359,049 3/ 1964 France.

BERNARD A. GELAK, Primary Examiner. 

